CentOS 6.3 Upgrade GCC and GDB

First, installation environment

System version: centos6.3 X64

Original GCC version: gcc-4.4.7

New GCC version: gcc-4.8.3

Original GDB version: Gdb-7.2-75.el6

New GDB version: gdb-7.6.1

Second, the official installation

1. Download and install the source code:

You need to download the following packages: gdb-7.6.1 gcc-4.6.1.tar.bz2 gmp-4.3.2.tar.bz2 mpc-0.8.1.tar.gz mpfr-2.4.2.tar.bz2

wget ftp://gcc.gnu.org/pub/gcc/infrastructure/gmp-4.3.2.tar.bz2

wget ftp://gcc.gnu.org/pub/gcc/infrastructure/mpc-0.8.1.tar.gz

wget ftp://gcc.gnu.org/pub/gcc/infrastructure/mpfr-2.4.2.tar.bz2

wget http://ftp.gnu.org/gnu/gcc/gcc-4.8.3/gcc-4.8.3.tar.bz2

wget http://ftp.gnu.org/gnu/gdb/gdb-7.6.1.tar.bz2

2, decompression and installation of GCC: Installation sequencing: GMP, MPFR, MPC, GCC

Installation of GMP:

Tar jxf gmp-4.3.2.tar.bz2

CD GMP-4.3.2/

./configure--prefix=/usr/local/gmp/

Make && make install

Install MPFR:

Cd.. /

Tar jxf mpfr-2.4.2.tar.bz2

CD MPFR-2.4.2/

./configure--PREFIX=/USR/LOCAL/MPFR--with-gmp=/usr/local/gmp

Make && make install

To install the MPC:

Cd.. /

Tar xzf mpc-0.8.1.tar.gz

CD mpc-0.8.1

./CONFIGURE–PREFIX=/USR/LOCAL/MPC--WITH-MPFR=/USR/LOCAL/MPFR--with-gmp=/usr/local/gmp

Make && make install

Install GCC: (Note: You can also omit the steps above to use GCC to bring your own script.)/contrib/download_prerequisites Auto Correlation GMP,MPFR,MPC)

Cd.. /

Tar jxf gcc-4.8.3.tar.bz2

CD gcc-4.8.3

./configure--PREFIX=/USR/LOCAL/GCC--enable-threads=posix--disable-checking--disable-multilib--enable-languages =c,c++--with-gmp=/usr/local/gmp--with-mpfr=/usr/local/mpfr/--with-mpc=/usr/local/mpc/

If executed./contrib/download_prerequisites, direct./configure--PREFIX=/USR/LOCAL/GCC--enable-threads=posix-- Disable-checking--disable-multilib--enable-languages=c,c++ can

If execution continues error: Building GCC requires GMP 4.2+, MPFR 2.3.1+ and MPC 0.8.0+

Workaround:

1. Setting Environment variables

Export Ld_library_path= $LD _library_path:/usr/local/mpc/lib:/usr/local/gmp/lib:/usr/local/mpfr/lib

Re-unzip gmp-4.3.2.tar.bz2 mpc-0.8.1.tar.gz mpfr-2.4.2.tar.bz2 three files and rename it to GMP, MPC, MPFR Copy to gcc-4.8.3 and re-execute

./configure--PREFIX=/USR/LOCAL/GCC--enable-threads=posix--disable-checking--disable-multilib--enable-languages =c,c++

Continue execution:

Make && make install//it takes a long time

3. Unzip and install GDB

Cd.. /

Tar jxf gdb-7.6.1.tar.bz2

CD gdb-7.6.1

./configure

Make && make install

Period Error: Configure:error:no termcap Library found

Compile and install termcap directly

Download Link: http://download.csdn.net/detail/hxl_c0s0d0n/4359422

Installation is complete! And then make a link to use GCC.

Mkdir-p/data/backup/' Date +%y%m%d '

mv/usr/bin/{gcc,g++}/data/backup/' Date +%y%m%d '

New Soft Link:

Ln-s/USR/LOCAL/GCC/BIN/GCC/USR/BIN/GCC

Ln-s/usr/local/gcc/bin/g++/usr/bin/g++

Third, testing gcc and GDB

Direct input gcc-v, gdb-v can see the GCC version of 4.8.3, gdb version of 7.6.1 and related compilation parameters is OK!

CentOS 6.3 Upgrade GCC and GDB